Biden spoke to about 600 people in the Wake Forest Biotech Place in Winston-Salem Wednesday morning. His speech focused on job creation and bolstering the economy for the middle class.
The company, which opened in February, is expected to bring 350 researchers and 100 support staff to the Piedmont Triad Research Park.
The visit capped of a flurry of economic banter between the campaigns of the president and Republican Mitt Romney in North Carolina, which has the highest unemployment rate in the nation.
Both Obama and Mitt Romney made visits in April.
The chief budget-writer in the U.S. House of Representatives, Wisconsin Rep. Paul Ryan, was in Raleigh on Tuesday on behalf of the Romney campaign.
Former-and-almost Republican presidential candidates Tim Pawlenty, Rick Perry and Donald Trump visited last weekend.
Biden's visit came just a day after possible Republican vice presidential candidate Congressman Paul Ryan was in Raleigh stumping for Mitt Romney.